A container-packed coffee beverage is provided, containing chlorogenic
acids to a suitable extent, and furthermore having excellent taste, and
with deterioration at heating has been suppressed. A container-packed
coffee beverage containing the following constituents (A), (B) and (C):
(A) Constituent .alpha. (B) Constituent .beta. (C) chlorogenic
acidswherein the peak area ratio of constituent (A) appearing in a
retention time of 2.0 to 2.3 minutes and constituent (B) appearing in a
retention time of 2.7 to 3.2 minutes on a chromatogram obtained by
constituent analysis of a coffee extract at a detection wavelength of 260
nm using a high performance liquid chromatography apparatus is
{(A)/(B)}.times.100=30 to 100, and the content ratio of 5-caffeoylquinic
acid within the constituent (C) is 28.0 to 35.0% by weight, and a
preparation method thereof is provided.